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18-12-2025 17:23

Bruno Coué Bruno Coué

Bonjour,je serais heureux d'avoir votre avis sur c

18-12-2025 21:17

Pol Debaenst

The identification took me to Byssonectria deformi

18-12-2025 18:07

Margot en Geert Vullings

These plumes were found on rotten wood.They strong

17-12-2025 18:35

Michel Hairaud Michel Hairaud

Bonjour à tous/Hi to everyone I am passing along

21-11-2025 10:47

François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

15-12-2025 21:47

Pol Debaenst

Good evening, On 12/11/2025 I found ascomycetes w

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Dermateaceae from Rubus chamaemorus
Nina Filippova, 14-07-2014 16:34
This quite distinctive species commonly met on stems of Rubus chamaemorus submerged in Sphagnum. It grows nearby with some Mollisia sp., but it has this distinct encrusted excipulum and dentate edge, pale vacuoles in paraphyses, so may be another genus?

Apothecia sessile or with very short stem, up to 700 mk broad, outer surface dark brown to black, rough, hymenium gray, edge shortly dentate from clumped hairs; when young dentate edge more pronounced; single or in groups on stems submerged in Sphagnum.

Excipulum from round brown cells about 10 mk, outer cells with rough brown incrustation; edge with clavate hairs sitting on 3-5 round cells, total length up to 40 mk, with the same brown incrustation; asci with crozier, with euamyloid ring, 40-47 x 4.4-5.4 mk (n=10); paraphyses narrow-lanceolate, with not contrast vacuoles, 45-50 x 3-3.5 mk; spores fusoid, heteropolar, without oils, 6.8 (5.9-7.9) x 1.7 (1.5-1.9) mk (n=20).

Date of collection: 14.07.2014, Coordinate: N60,891507° E68,673145°
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Nicolas VAN VOOREN, 14-07-2014 17:07
Nicolas VAN VOOREN
Re : Dermateaceae from Rubus chamaemorus
Maybe the genus Pirottaea...